21515697129472848

Names of 21515697129472848

• Cardinal: 21515697129472848 can be written as Twenty-one quadrillion, five hundred fifteen trillion, six hundred ninety-seven billion, one hundred twenty-nine million, four hundred seventy-two thousand, eight hundred forty-eight.

Scientific notation

• Scientific notation: 2.1515697129472848 × 10¹⁶

Factors of 21515697129472848

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 472

Divisors of 21515697129472848

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 36 46 47 48 69 72 92 94 138 141 144 184 188 207 276 282 368 376 397 414 423 552 564 752 794 828 846 1081 1104 1128 1191 1588 1656 1692 2162 2209 2256 2382 3176 3243 3312 3384 3573 4324 4418 4764 6352 6486 6627 6768 7146 8648 8836 9131 9528 9729 12972 13254 14292 17296 17672 18262 18659 19056 19458 19881 25944 26508 27393 28584 35344 36524 37318 38916 39762 50807 51888 53016 54786 55977 57168 73048 74636 77832 79524 82179 101614 103823 106032 109572 111954 146096 149272 152421 155664 157609 159048 164358 167931 203228 207646 219144 223908 298544 304842 311469 315218 318096 328716 335862 406456 415292 429157 438288 447816 457263 472827 609684 622938 630436 657432 671724 812912 830584 858314 876973 895632 914526 934407 945654 1219368 1245876 1260872 1287471 1314864 1343448 1418481 1661168 1716628 1753946 1829052 1868814 1891308 2387929 2438736 2491752 2521744 2574942 2630919 2686896 2836962 3433256 3507892 3625007 3658104 3737628 3782616 3862413 4775858 4983504 5149884 5261838 5673924 6866512 7015784 7163787 7250014 7316208 7407623 7475256 7565232 7724826 7892757 9551716 10299768 10523676 10875021 11347848 14031568 14327574 14500028 14815246 14950512 15449652 15785514 19103432 20170379 20599536 21047352 21491361 21750042 22222869 22695696 28655148 29000056 29630492 30899304 31571028 32625063 38206864 40340758 41217731 42094704 42982722 43500084 44445738 57310296 58000112 59260984 60511137 61798608 62570773 63142056 65250126 66668607 80681516 82435462 85965444 87000168 88891476 114620592 118521968 121022274 123653193 125141546 126284112 130500252 133337214 161363032 164870924 170375329 171930888 174000336 177782952 181533411 187712319 242044548 247306386 250283092 261000504 266674428 322726064 329741848 340750658 343861776 348158281 355565904 363066822 370959579 375424638 484089096 494612772 500566184 511125987 522001008 533348856 563136957 659483696 681501316 696316562 726133644 741919158 750849276 948007813 968178192 989225544 1001132368 1022251974 1044474843 1066697712 1126273914 1363002632 1392633124 1439127779 1452267288 1483838316 1501698552 1533377961 1896015626 1978451088 2044503948 2088949686 2252547828 2726005264 2785266248 2844023439 2878255558 2904534576 2940826331 2967676632 3003397104 3066755922 3133424529 3792031252 4089007896 4177899372 4317383337 4505095656 5570532496 5688046878 5756511116 5881652662 5935353264 6133511844 6266849058 7584062504 8007640463 8178015792 8355798744 8532070317 8634766674 8822478993 9010191312 11376093756 11513022232 11763305324 12267023688 12533698116 12952150011 15168125008 16015280926 16363439207 16711597488 17064140634 17269533348 17644957986 22752187512 23026044464 23526610648 24022921389 24534047376 25067396232 25904300022 26467436979 32030561852 32726878414 34128281268 34539066696 35289915972 45504375024 47053221296 48045842778 49090317621 50134792464 51808600044 52934873958 64061123704 65453756828 67639005613 68256562536 69078133392 70579831944 72068764167 96091685556 98180635242 103617200088 105869747916 128122247408 130907513656 135278011226 136513125072 138218837557 141159663888 144137528334 147270952863 192183371112 196361270484 202917016839 207234400176 211739495832 261815027312 270556022452 276437675114 288275056668 294541905726 376359101761 384366742224 392722540968 405834033678 414656512671 423478991664 541112044904 552875350228 576550113336 589083811452 608751050517 752718203522 785445081936 811668067356 829313025342 1082224089808 1105750700456 1129077305283 1153100226672 1178167622904 1217502101034 1243969538013 1505436407044 1623336134712 1658626050684 2211501400912 2258154610566 2356335245808 2435004202068 2487939076026 3010872814088 3179033263811 3246672269424 3317252101368 3387231915849 4516309221132 4870008404136 4975878152052 6021745628176 6358066527622 6496285365179 6634504202736 6774463831698 9032618442264 9537099791433 9740016808272 9951756304104 12716133055244 12992570730358 13548927663396 18065236884528 19074199582866 19488856095537 19903512608208 25432266110488 25985141460716 27097855326792 28611299374299 38148399165732 38977712191074 50864532220976 51970282921432 54195710653584 57222598748598 58466568286611 76296798331464 77955424382148 103940565842864 114445197497196 116933136573222 149414563399117 152593596662928 155910848764296 228890394994392 233866273146444 298829126798234 311821697528592 448243690197351 457780789988784 467732546292888 597658253596468 896487380394702 935465092585776 1195316507192936 1344731070592053 1792974760789404 2390633014385872 2689462141184106 3585949521578808 5378924282368212 7171899043157616 10757848564736424 21515697129472848
• Sum of all divisors σ(n): 64360089597772800
• Sum of proper divisors (its aliquot sum) s(n): 42844392468299952
• 21515697129472848 is an abundant number, because the sum of its proper divisors (42844392468299952) is greater than itself. Its abundance is 21328695338827104

Bases of 21515697129472848

• Binary: 1001100011100000110100110011100011111110100001101010000₂
• Hexadecimal: 0x4C70699C7F4350
• Base-36: 5VUOET41TG0

Squares and roots of 21515697129472848

• 21515697129472848 squared (21515697129472848²) is 462925222967206151353330369231104
• 21515697129472848 cubed (21515697129472848³) is 9960158890956095517653587184109293828730605064192
• The square root of 21515697129472848 is 146682299.9869883687
• The cube root of 21515697129472848 is 278132.5435002341

Scales and comparisons

• 21,515,697,129,472,848 seconds is equal to 684,132,616 years, 15 weeks, 2 days, 20 hours, 40 minutes, 48 seconds.
• To count from 1 to 21,515,697,129,472,848 would take you about two billion, fifty-two million, three hundred ninety-seven thousand, eight hundred forty-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21515697129472848 cubic inches would be around 23177.7 feet tall.

Recreational maths with 21515697129472848

• 21515697129472848 backwards is 84827492179651512
• The number of decimal digits it has is: 17
• The sum of 21515697129472848's digits is 81
• More coming soon!